Java determines whether it is a Long type

java determines whether it is a Long type

1. First define a getType method to receive a parameter of type Object;

2. Then use the getClass method to obtain the class type object;

3. Then use the toString() method to convert it to a string, and use substring to intercept the string. Get the variable type;

4. Finally, compare the variable type with the Long string

public class HelloWorld {
    public static void main(String[] args) {
		Boolean res = getType(1232343234L);
		if(res) {
			System.out.println("是Long类型");
		}else{
			System.out.println("不是Long类型");
		}
	}
	
	public static Boolean getType(Object o) {
		String type = o.getClass().toString();
		System.out.println(type);
		type = type.substring(type.lastIndexOf('.') + 1, type.length());
		if("Long".equals(type)) {
			return true;
		}
		return false;
	}
}

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